1 /******************************************************************************
2 *
3 * Module Name: osunixdir - Unix directory access interfaces
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 #include "acpi.h"
153
154 #include <stdio.h>
155 #include <stdlib.h>
156 #include <string.h>
157 #include <dirent.h>
158 #include <fnmatch.h>
159 #include <ctype.h>
160 #include <sys/stat.h>
161
162 /*
163 * Allocated structure returned from OsOpenDirectory
164 */
165 typedef struct ExternalFindInfo
166 {
167 char *DirPathname;
168 DIR *DirPtr;
169 char temp_buffer[256];
170 char *WildcardSpec;
171 char RequestedFileType;
172
173 } EXTERNAL_FIND_INFO;
174
175
176 /*******************************************************************************
177 *
178 * FUNCTION: AcpiOsOpenDirectory
179 *
180 * PARAMETERS: DirPathname - Full pathname to the directory
181 * WildcardSpec - string of the form "*.c", etc.
182 *
183 * RETURN: A directory "handle" to be used in subsequent search operations.
184 * NULL returned on failure.
185 *
186 * DESCRIPTION: Open a directory in preparation for a wildcard search
187 *
188 ******************************************************************************/
189
190 void *
AcpiOsOpenDirectory(char * DirPathname,char * WildcardSpec,char RequestedFileType)191 AcpiOsOpenDirectory (
192 char *DirPathname,
193 char *WildcardSpec,
194 char RequestedFileType)
195 {
196 EXTERNAL_FIND_INFO *ExternalInfo;
197 DIR *dir;
198
199
200 /* Allocate the info struct that will be returned to the caller */
201
202 ExternalInfo = calloc (1, sizeof (EXTERNAL_FIND_INFO));
203 if (!ExternalInfo)
204 {
205 return (NULL);
206 }
207
208 /* Get the directory stream */
209
210 dir = opendir (DirPathname);
211 if (!dir)
212 {
213 fprintf (stderr, "Cannot open directory - %s\n", DirPathname);
214 free (ExternalInfo);
215 return (NULL);
216 }
217
218 /* Save the info in the return structure */
219
220 ExternalInfo->WildcardSpec = WildcardSpec;
221 ExternalInfo->RequestedFileType = RequestedFileType;
222 ExternalInfo->DirPathname = DirPathname;
223 ExternalInfo->DirPtr = dir;
224 return (ExternalInfo);
225 }
226
227
228 /*******************************************************************************
229 *
230 * FUNCTION: AcpiOsGetNextFilename
231 *
232 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
233 *
234 * RETURN: Next filename matched. NULL if no more matches.
235 *
236 * DESCRIPTION: Get the next file in the directory that matches the wildcard
237 * specification.
238 *
239 ******************************************************************************/
240
241 char *
AcpiOsGetNextFilename(void * DirHandle)242 AcpiOsGetNextFilename (
243 void *DirHandle)
244 {
245 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle;
246 struct dirent *dir_entry;
247 char *temp_str;
248 int str_len;
249 struct stat temp_stat;
250 int err;
251
252
253 while ((dir_entry = readdir (ExternalInfo->DirPtr)))
254 {
255 if (!fnmatch (ExternalInfo->WildcardSpec, dir_entry->d_name, 0))
256 {
257 if (dir_entry->d_name[0] == '.')
258 {
259 continue;
260 }
261
262 str_len = strlen (dir_entry->d_name) +
263 strlen (ExternalInfo->DirPathname) + 2;
264
265 temp_str = calloc (str_len, 1);
266 if (!temp_str)
267 {
268 fprintf (stderr,
269 "Could not allocate buffer for temporary string\n");
270 return (NULL);
271 }
272
273 strcpy (temp_str, ExternalInfo->DirPathname);
274 strcat (temp_str, "/");
275 strcat (temp_str, dir_entry->d_name);
276
277 err = stat (temp_str, &temp_stat);
278 if (err == -1)
279 {
280 fprintf (stderr,
281 "Cannot stat file (should not happen) - %s\n",
282 temp_str);
283 free (temp_str);
284 return (NULL);
285 }
286
287 free (temp_str);
288
289 if ((S_ISDIR (temp_stat.st_mode)
290 && (ExternalInfo->RequestedFileType == REQUEST_DIR_ONLY))
291 ||
292 ((!S_ISDIR (temp_stat.st_mode)
293 && ExternalInfo->RequestedFileType == REQUEST_FILE_ONLY)))
294 {
295 /* copy to a temp buffer because dir_entry struct is on the stack */
296
297 strcpy (ExternalInfo->temp_buffer, dir_entry->d_name);
298 return (ExternalInfo->temp_buffer);
299 }
300 }
301 }
302
303 return (NULL);
304 }
305
306
307 /*******************************************************************************
308 *
309 * FUNCTION: AcpiOsCloseDirectory
310 *
311 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
312 *
313 * RETURN: None.
314 *
315 * DESCRIPTION: Close the open directory and cleanup.
316 *
317 ******************************************************************************/
318
319 void
AcpiOsCloseDirectory(void * DirHandle)320 AcpiOsCloseDirectory (
321 void *DirHandle)
322 {
323 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle;
324
325
326 /* Close the directory and free allocations */
327
328 closedir (ExternalInfo->DirPtr);
329 free (DirHandle);
330 }
331
